John tyndall and Ferdinand Cohn discovered that there were two types of bacteria exisitng in nature: those who are affected by heat leading eventually to their demise and those that are resistant or immune to a certain degree of heat. This finding is important in the devising of the sterilization process which it was recognized as a method of killing bacteria by applying heat to the medium. Later on, Cohn discovered the existence of endospores. Today, there are various types of bacteria, the thermobacteria, the cryobacteria- bacteria that are prone to cold temperatures and the bacteria that thrive on temperatures from 30-35 degrees normally.
Answer:
A: Young people are making an effort to protect the environment.
Explanation:
The immediate causes of the Hundred Years War were the dissatisfaction of Edward III of England with the nonfulfillment by Philip VI of France of his pledges to restore a part of Guienne taken by Charles IV; the English attempts to control Flanders, an important market for English wool and a source of cloth
Delivering mail and collecting duties and taxes !!
